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Upper Llagas Creek

Brief description:
As part of the water district’s Safe, Clean Water & Natural Flood Protection Program approved by the voters in November 2012, the  Upper Llagas Creek Flood Protection Project  (PDF), located in San Martin and the cities of Morgan Hill and Gilroy, will provide flood protection to communities along the East Little Llagas Creek, West Little Llagas Creek and Llagas Creek in San Martin and Morgan Hill. In addition, the project design is being updated to protect homes, businesses and acres of agricultural land to preserve and enhance the creek's habitat, fish and wildlife.

The project extends approximately 13 miles from about Buena Vista Avenue to just beyond Llagas Road. The project will provide 100-year level of flood protection in the urban areas of Morgan Hill, as well as an approximate 10-year level of flood protection and no induced flooding in the agricultural areas of Gilroy and Morgan Hill.

Project scope of work/goals:
To provide flood protection for 1,100 homes, 500 businesses, and over 1,300 acres of agricultural land in southern Santa Clara County.

Project contact:
For more information about this project, contact Engineering Unit Manager Stephen Ferranti at (408) 630-2677.

You can also use "Access Valley Water" to submit questions, complaints or compliments directly from your computer to a water district staff who can help you. Click on the"Projects or work going on in my neighborhood" tab and select
"Upper Llagas Creek Flood Protection Project".

Sign up to receive project updates via email.


The Santa Clara Valley Water District held a community meeting on the Upper Llagas Creek Flood Protection Project Draft Environmental Impact Report (DEIR). The purpose of the meeting was to allow the public the opportunity to comment on the DEIR and to answer questions related to the environmental impacts of the project.

The Draft Environmental Impact Report can be viewed by clicking here.

To date, progress on the project has been slow, primarily due to challenges in obtaining federal funding. The water district and Morgan Hill have decided to complete the design and any environmental documents to keep the project moving along.

  • Scoping meeting on Subsequent Environmental Impact Report 
    Thursday, Oct. 25, 2012 (6:30 - 8 p.m.)
    Morgan Hill Community and Cultural Center, Hiram Morgan Hill Room
    17000 Monterey Road, Morgan Hill, CA

View powerpoint presentation